Pith Number

pith:ZUPWO3AR

pith:2015:ZUPWO3ARMYDCCO5KDFEXIHZQ55

not attested not anchored not stored refs pending

Sensor Placement for Optimal Kalman Filtering: Fundamental Limits, Submodularity, and Algorithms

Ali Jadbabaie, George J. Pappas, Vasileios Tzoumas

arxiv:1509.08146 v4 · 2015-09-27 · math.OC · cs.SY · eess.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZUPWO3ARMYDCCO5KDFEXIHZQ55}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-04T17:09:38.906299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd1f676c116606213baa1949741f30ef632f42cfb0f4cd872015b6c4a7fefb2f

Aliases

arxiv: 1509.08146 · arxiv_version: 1509.08146v4 · doi: 10.48550/arxiv.1509.08146 · pith_short_12: ZUPWO3ARMYDC · pith_short_16: ZUPWO3ARMYDCCO5K · pith_short_8: ZUPWO3AR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZUPWO3ARMYDCCO5KDFEXIHZQ55 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: cd1f676c116606213baa1949741f30ef632f42cfb0f4cd872015b6c4a7fefb2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "910fdf8bcf715e35b0bd3eae1419499592fbe503aaaed886a556ec1523544b0e",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-09-27T21:27:24Z",
    "title_canon_sha256": "0841256ce6eb6baf76ee8e78a01deb1c820e3d55f296ee661c928d8ea821941b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08146",
    "kind": "arxiv",
    "version": 4
  }
}